Coryphaenoides, Gunnerus, 1874

Iwamoto, Tomio, Nakayama, Naohide, Shao, Kwang-Tsao & Table, Hsuan-Ching Ho, 2015, Synopsis of the Grenadier Fishes (Gadiformes; Teleostei) of Taiwan, Proceedings of the California Academy of Sciences 62 (3), pp. 31-126 : 69

Key to the Species of Coryphaenoides in Taiwan

1a. V rays 7 or 8; a greatly elongated spinous 1D ray, usually more than 1.5 times HL C. microps

1b. V rays 9–12; spinous 1D ray much less than 1.5 times HL........................... 2

2a. Mouth large, upper jaw extends to below posterior margin of orbit or beyond; barbel 10–23% of HL............................................................... C. rudis

2b. Mouth moderate to small, upper jaw not extending beyond posterior 1 ⁄ 3 of orbit; barbel 6–14% of HL.................................................................... 3

3a. Interorbital space much smaller than orbit (about 1.3 into); GR-I (inner series) 9–10 total; snout acutely pointed; preopercle ridge forming acute, lobelike angle posteroventrally.. C. nasutus

3b. Interorbital space much larger than orbit (about 0.7 into); GR-I (inner series) about 7 total; snout rather bluntly pointed; preopercle ridge forming shallow rounded lobe posteroventrally................................................................. C. cf. asper